Corrigendum: Single Ir Atoms Anchored on Ordered Mesoporous WO3 Are Highly Efficient for the Selective Catalytic Reduction of NO with CO under Oxygen-rich Conditions (ChemCatChem, (2021), 13, (1834–1846), 10.1002/cctc.202001784)

Ruihuan Jiang, Shaomian Liu, Liang Li, Yongjun Ji, Huifang Li, Xiangfeng Guo, Lihua Jia, Ziyi Zhong, Fabing Su

Research output: Contribution to journalComment/debate

1 Scopus citations

Abstract

This is a Corrigendum for the article entitled “Single Ir Atoms Anchored on Ordered Mesoporous WO3 Are Highly Efficient for the Selective Catalytic Reduction of NO with CO under Oxygen-rich Conditions ”, published in ChemCatChem 2021, 13, 1834–1846, DOI: 10.1002/cctc.202001784. A recent paper by Jiang et al. in this journal reported on the catalytic activity of Ir and WO3-based catalysts for the NO-CO reaction.[1] Unfortunately, two errors were made in the analysis of the data on the characterization of the samples by IR of CO adsorption. The corrections are listed as follows: 1. The misinterpretation of gas-phase bands in the reported IR spectra The bands at 2107 and 2173 cm−1 in the reported IR spectra, which are supposed to be ascribed to the P- and R-branch of gas-phase CO, were wrongly misinterpreted as CO adsorbed on Ir0 and CO linearly bonded to Irδ+ sites, respectively. In the original article, on page 1843, the description of “The band at 2107 cm−1 is due to CO species adsorbed on iridium (Ir0-CO), while that at 2173 cm−1 can be assigned to CO linearly bonded to Irδ+ sites.[44,45]” should be corrected to “The bands at 2107 and 2173 cm−1 can be assigned to P-branch band and R-branch band of gas-phase CO, respectively.[44]” The deletion of reference 45 is because it does not emphasize the interpretation of gaseous CO. 2. The presence of metallic Ir clusters on a sample that was supposed to only exhibit Ir singles atoms On the sample that consisted of ordered mesoporous WO3 supported with single Ir atoms, there also exists a small amount of metallic Ir clusters, which was proved by the appearance of a weak band at 2056 cm−1 in the reported IR spectra referring to the previous references.[2,3] In the original article, the descriptions of “single Ir atoms” should be corrected to “highly dispersed Ir”. Acknowledgements We gratefully acknowledge Professor Frederic Meunier for pointing out our mistakes in interpreting in-situ infrared spectra analysis of CO adsorption. We also thank the two anonymous reviewers for their helpful suggestions. 1. The misinterpretation of gas-phase bands in the reported IR spectra The bands at 2107 and 2173 cm−1 in the reported IR spectra, which are supposed to be ascribed to the P- and R-branch of gas-phase CO, were wrongly misinterpreted as CO adsorbed on Ir0 and CO linearly bonded to Irδ+ sites, respectively. In the original article, on page 1843, the description of “The band at 2107 cm−1 is due to CO species adsorbed on iridium (Ir0-CO), while that at 2173 cm−1 can be assigned to CO linearly bonded to Irδ+ sites.[44,45]” should be corrected to “The bands at 2107 and 2173 cm−1 can be assigned to P-branch band and R-branch band of gas-phase CO, respectively.[44]” The deletion of reference 45 is because it does not emphasize the interpretation of gaseous CO. 2. The presence of metallic Ir clusters on a sample that was supposed to only exhibit Ir singles atoms On the sample that consisted of ordered mesoporous WO3 supported with single Ir atoms, there also exists a small amount of metallic Ir clusters, which was proved by the appearance of a weak band at 2056 cm−1 in the reported IR spectra referring to the previous references.[2,3] In the original article, the descriptions of “single Ir atoms” should be corrected to “highly dispersed Ir”. Acknowledgements We gratefully acknowledge Professor Frederic Meunier for pointing out our mistakes in interpreting in-situ infrared spectra analysis of CO adsorption. We also thank the two anonymous reviewers for their helpful suggestions.

Original languageEnglish
Article numbere202101774
JournalChemCatChem
Volume14
Issue number6
DOIs
StatePublished - 22 Mar 2022

Fingerprint

Dive into the research topics of 'Corrigendum: Single Ir Atoms Anchored on Ordered Mesoporous WO3 Are Highly Efficient for the Selective Catalytic Reduction of NO with CO under Oxygen-rich Conditions (ChemCatChem, (2021), 13, (1834–1846), 10.1002/cctc.202001784)'. Together they form a unique fingerprint.

Cite this